Having a bit of bother with a Sugino No.6 chainset I've fitted to my late '70s Sun - when you rotate it, the rings move approx 3-4mm from side to side
think there must've been a big wallop?
Anyway, just seeing what's put there, ideally a nice 3 or 5 arm late 1970s cotterless affair with 52/42 rings or thereabouts... thinking Brit, Jap, German or French - Campag not right for the build. Must be in good working order with life in the rings, happy to clean and polish a mucky / lightly scratched one
What you got? If the BCD of your cranks is 130 then I have a 52 ring here. I also have plenty of c/rings bolts... anything to keep costs down!